Zobrazeno 1 - 10
of 452
pro vyhledávání: '"Ninghua Zhu"'
Autor:
Mingjian Li, Tengfei Hao, Guozheng Li, Anle Wang, Yitang Dai, Wei Li, José Capmany, Jianping Yao, Ninghua Zhu, Ming Li
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-9 (2024)
Abstract Parity-time (PT) symmetry is an active research area that provides a variety of new opportunities for different systems with novel functionalities. For instance, PT symmetry has been used in lasers and optoelectronic oscillators to achieve s
Externí odkaz:
https://doaj.org/article/5ae6f89b6c9848bc959491cc54234707
Autor:
Xiangyan Meng, Guojie Zhang, Nuannuan Shi, Guangyi Li, José Azaña, José Capmany, Jianping Yao, Yichen Shen, Wei Li, Ninghua Zhu, Ming Li
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-9 (2023)
Abstract Convolutional neural networks are an important category of deep learning, currently facing the limitations of electrical frequency and memory access time in massive data processing. Optical computing has been demonstrated to enable significa
Externí odkaz:
https://doaj.org/article/d997dca96aa3477daf42e93ea336d4da
Publikováno v:
Forests, Vol 15, Iss 3, p 411 (2024)
This research delves into the impact of climate change on the wood traits of Cunninghamia lanceolata across various altitudinal gradients, aiming to understand the influence of altitude and climatic factors like temperature and precipitation on key w
Externí odkaz:
https://doaj.org/article/838ef751ceb54c70b8d560b35c7f5e45
Optical Frequency Comb Generation Based on Optoelectronic Oscillator and Fabry-Perot Phase Modulator
Publikováno v:
IEEE Photonics Journal, Vol 15, Iss 6, Pp 1-5 (2023)
We propose and demonstrate an optical pulse generator using optoelectronic oscillator (OEO) and Fabry-Perot phase modulator (FP-PM). A complete theoretical analysis is developed, and the advantages of the proposed system are also discussed. The optic
Externí odkaz:
https://doaj.org/article/b7d8da38f4cb4d5e95563d607b3568e6
Autor:
Jian Wang, Wenting Wang, Renheng Zhang, Bei Chen, Dechao Ban, Ya Jin, Keqi Cao, Yu Liu, Ninghua Zhu
Publikováno v:
IEEE Photonics Journal, Vol 15, Iss 5, Pp 1-7 (2023)
We propose and demonstrate a high-precision phase noise analysis method based on a photonic-assisted microwave phase shifter (MPS) without nonlinear phase distortions (NPD). The proposed scheme utilizes a dual parallel Mach Zehnder modulator (DPMZM)
Externí odkaz:
https://doaj.org/article/93564eede51a4947baa367cf04cbdb29
Publikováno v:
IEEE Photonics Journal, Vol 15, Iss 4, Pp 1-6 (2023)
We propose and experimentally demonstrate an approach to generate triangular-shaped microwave signals based on optical polarization processing and stimulated Brillouin amplification, using a polarization modulator (PolM) and a fiber Brillouin amplifi
Externí odkaz:
https://doaj.org/article/53bb62882d4e411486425b35f350344b
Monolithically Integrated Tunable Three- Section All-Active DBR Laser Diodes With 30 nm Tuning Range
Publikováno v:
IEEE Photonics Journal, Vol 15, Iss 2, Pp 1-9 (2023)
We present a monolithically integrated three-section all-active AlGaInAs/InP tunable distributed Bragg reflector (DBR) ridge waveguide laser diode that uses thermal tuning mechanism and mode-hopping tuning principle to achieve wide-range wavelength t
Externí odkaz:
https://doaj.org/article/3412c15cf4e34461bd3c15c1a3df740d
Autor:
Qizhuang Cen, Hao Ding, Tengfei Hao, Shanhong Guan, Zhiqiang Qin, Jiaming Lyu, Wei Li, Ninghua Zhu, Kun Xu, Yitang Dai, Ming Li
Publikováno v:
Light: Science & Applications, Vol 11, Iss 1, Pp 1-10 (2022)
Abstract Ising machines based on analog systems have the potential to accelerate the solution of ubiquitous combinatorial optimization problems. Although some artificial spins to support large-scale Ising machines have been reported, e.g., supercondu
Externí odkaz:
https://doaj.org/article/9201d70795414556a10fcfe6e5a9a989
Publikováno v:
Forests, Vol 14, Iss 12, p 2370 (2023)
Karst ecosystems are characterized by the dissolution of soluble rocks, displaying distinctive landscape features such as rugged peaks, steep slopes, and deep valleys. Afforestation is an effective approach for improving soil quality in rocky deserti
Externí odkaz:
https://doaj.org/article/4f0493e3c1b44ec795ac84844ead5af8
Publikováno v:
APL Photonics, Vol 8, Iss 2, Pp 020901-020901-15 (2023)
As a paradigmatic microwave photonic resonant system that is capable of producing high-quality self-sustained microwave oscillations, the optoelectronic oscillator (OEO) has been intensively investigated in recent years, and a diversity of new insigh
Externí odkaz:
https://doaj.org/article/9a728bf3017542198bb845f36e84cd24